Spectroscopic sensor device and electronic equipment

Abstract

A spectroscopic sensor that applies lights in a wavelength band containing plural wavelengths to an object and spectroscopically separates reflected lights or transmitted lights from the object using plural light band-pass filters that transmit the respective specific wavelengths and plural photosensor parts to which corresponding transmitted lights are input based on output results of independent photosensors. The spectroscopic sensor may be integrated in a semiconductor device or module by integration using a semiconductor process and downsizing may be realized.

Description

[0001]The entire disclosure of Japanese Patent Application No. 2010-048848, filed Mar. 5, 2010 is expressly incorporated by reference herein.BACKGROUND[0002]1. Technical Field[0003]The present invention relates to a spectroscopic sensor device, electronic equipment, etc.[0004]2. Related Art[0005]In medical, agricultural, environmental fields etc., spectroscopic sensors are used for diagnoses and inspections of objects. For example, in medical fields, pulse oximeters that measure oxygen saturation in the blood using light absorption of hemoglobin are used. Further, in the agricultural fields, sugar content meters that measure the sugar contents of fruits using light absorption of sugar.[0006]However, in spectroscopic sensors in related art, there is a problem that downsizing is difficult. For example, in a spectroscopic sensor that acquires a continuous spectrum, it is necessary to provide a prism for generation of the continuous spectrum or the like and secure an optical path length...

AI Technical Summary

Benefits of technology

The invention provides a way to make small spectroscopic sensors and electronic equipment. This makes them easier to carry and use in smaller spaces.

Problems solved by technology

However, in spectroscopic sensors in related art, there is a problem that downsizing is difficult.

Accordingly, it is difficult to provide many sensors, constantly provide sensors for an object to be inspected, or the like.

In this case, since the incident angles of incident lights to the light receiving areas of the plural photosensor parts are limited, the transmission wavelength bands of the plural light band-pass filters may be limited.

Further, the light entering the spectroscopic sensor from the light source unit not via the object of observation may be blocked.

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